2 * board/renesas/alt/alt.c
4 * Copyright (C) 2014 Renesas Electronics Corporation
6 * SPDX-License-Identifier: GPL-2.0
11 #include <asm/processor.h>
12 #include <asm/mach-types.h>
14 #include <asm/errno.h>
15 #include <asm/arch/sys_proto.h>
17 #include <asm/arch/rmobile.h>
18 #include <asm/arch/rcar-mstp.h>
25 DECLARE_GLOBAL_DATA_PTR;
27 #define CLK2MHZ(clk) (clk / 1000 / 1000)
30 struct rcar_rwdt *rwdt = (struct rcar_rwdt *)RWDT_BASE;
31 struct rcar_swdt *swdt = (struct rcar_swdt *)SWDT_BASE;
34 writel(0xA5A5A500, &rwdt->rwtcsra);
35 writel(0xA5A5A500, &swdt->swtcsra);
41 #define TMU0_MSTP125 (1 << 25)
42 #define SCIF2_MSTP719 (1 << 19)
43 #define ETHER_MSTP813 (1 << 13)
44 #define IIC1_MSTP323 (1 << 23)
46 int board_early_init_f(void)
49 mstp_clrbits_le32(MSTPSR1, SMSTPCR1, TMU0_MSTP125);
52 mstp_clrbits_le32(MSTPSR7, SMSTPCR7, SCIF2_MSTP719);
55 mstp_clrbits_le32(MSTPSR8, SMSTPCR8, ETHER_MSTP813);
57 /* IIC1 / sh-i2c ch1 */
58 mstp_clrbits_le32(MSTPSR3, SMSTPCR3, IIC1_MSTP323);
63 void arch_preboot_os(void)
66 mstp_setbits_le32(MSTPSR1, SMSTPCR1, TMU0_MSTP125);
71 /* adress of boot parameters */
72 gd->bd->bi_boot_params = CONFIG_SYS_SDRAM_BASE + 0x100;
74 /* Init PFC controller */
75 r8a7794_pinmux_init();
78 gpio_request(GPIO_FN_ETH_CRS_DV, NULL);
79 gpio_request(GPIO_FN_ETH_RX_ER, NULL);
80 gpio_request(GPIO_FN_ETH_RXD0, NULL);
81 gpio_request(GPIO_FN_ETH_RXD1, NULL);
82 gpio_request(GPIO_FN_ETH_LINK, NULL);
83 gpio_request(GPIO_FN_ETH_REFCLK, NULL);
84 gpio_request(GPIO_FN_ETH_MDIO, NULL);
85 gpio_request(GPIO_FN_ETH_TXD1, NULL);
86 gpio_request(GPIO_FN_ETH_TX_EN, NULL);
87 gpio_request(GPIO_FN_ETH_MAGIC, NULL);
88 gpio_request(GPIO_FN_ETH_TXD0, NULL);
89 gpio_request(GPIO_FN_ETH_MDC, NULL);
90 gpio_request(GPIO_FN_IRQ8, NULL);
93 gpio_request(GPIO_GP_1_24, NULL);
94 gpio_direction_output(GPIO_GP_1_24, 0);
96 gpio_set_value(GPIO_GP_1_24, 1);
102 #define CXR24 0xEE7003C0 /* MAC address high register */
103 #define CXR25 0xEE7003C8 /* MAC address low register */
104 int board_eth_init(bd_t *bis)
106 #ifdef CONFIG_SH_ETHER
109 unsigned char enetaddr[6];
111 ret = sh_eth_initialize(bis);
112 if (!eth_getenv_enetaddr("ethaddr", enetaddr))
115 /* Set Mac address */
116 val = enetaddr[0] << 24 | enetaddr[1] << 16 |
117 enetaddr[2] << 8 | enetaddr[3];
120 val = enetaddr[4] << 8 | enetaddr[5];
131 gd->ram_size = CONFIG_SYS_SDRAM_SIZE;
136 const struct rmobile_sysinfo sysinfo = {
137 CONFIG_RMOBILE_BOARD_STRING
140 void reset_cpu(ulong addr)
144 i2c_set_bus_num(1); /* PowerIC connected to ch1 */
145 i2c_read(CONFIG_SYS_I2C_POWERIC_ADDR, 0x13, 1, &val, 1);
147 i2c_write(CONFIG_SYS_I2C_POWERIC_ADDR, 0x13, 1, &val, 1);